Improved MPSIAC model for soil erosion rate assessment in semiarid zones
type: Document
volume: 212
artnum: 104946
has publication venue: Journal of Arid Environments
estado: published
type: Continuant
e iscopus: 2-s2.0-85148000978
most specific type: Document
crisid: 10050
type: Information Content Entity
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freetext keyword: GIS; KUERY algorithm; Microcatchment; MPSIAC model; Water erosion algorithm; assessment method; catchment; erodibility; erosion rate; GIS; sediment yield; semiarid region; soil erosion; water erosion; Mexico [North America]
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT: 184060, 427085/324785, CVU 567993/302713
origen: scopus
doi: 10.1016/j.jaridenv.2023.104946
most specific type: Article
abstract: Erosion of soil by water is one of the most significant forms of soil degradation. The validity of the Modified Pacific South-West Inter-Agency Committee (MPSIAC) model for assessment of soil erosion rates has been demonstrated in many countries. We propose an improved version of the MPSIAC model to determine the erosion rate and expected sediment yield in two scenarios, conservative and adverse. Three microcatchments were selected from an arid semi-desert biome in Mexico, chosen for their advanced state of soil erosion by water and soil degradation. The improvements introduced to the MPSIAC model made field and laboratory work easier and can improve the methodology used for management of watersheds with similar conditions anywhere in the world. The improvements are related to selecting the microcatchment size, adding new categorization level of sediment yield, and calculating the time of rain concentration and modified erodibility factor K. The sensitivity analysis showed that runoff, surface erosion and channel erosion parameters are the most significant and soil factor K is the least sensitive parameter of the model. The improvements will support decision-making processes and selection of control practices that are best suited to the particular needs of each site and to preventing soil erosion risks. © 2023 Elsevier Ltd
type: Article
type: Thing
related by: authorship_69399
related by: authorship_69400
type: Generically Dependent Continuant
date time value: article date 10050

Document
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Continuant
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Journal of Arid Environments
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type: Document
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publication venue for: Improved MPSIAC model for soil erosion rate assessment in semiarid zones
type: Journal

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Generically Dependent Continuant
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RDF description of Improved MPSIAC model for soil erosion rate assessment in semiarid zones - http://orbis.uaslp.mx/vivo/individual/scopus10049
rights: termsOfUse
date: 2026-08-25T07:00:38
publisher: vivo
type: Document

Article
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Information Content Entity
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Consejo Nacional de Ciencia y Tecnología, CONACYT: 184060, 427085/324785, CVU 567993/302713
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type: BFO_0000020
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type: Thing
type: Grant
type: Continuant
funding vehicle for: Improved MPSIAC model for soil erosion rate assessment in semiarid zones